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packing box seal
释义
packing box seal
Encyclopedia
工学
往复密封
释
packing box seal
填料密封
通过填料阻塞泄漏通路实现往复或旋转相对运动界面的密封。又称压紧填料密封。
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Alsino and the Condor
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also Courtgovernment
alsophila ferns
ALSOR
alstroemeria family
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Al Suhail al Muhlif
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Altaic family
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Altai minerogenetic province
Altair
Altair lunar module
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altai zokor
alt-alt mounting
Altamira Cave Paintings
Altar
altar
altar celebrations
altar celebrations opera
altar completion stele at the Temple to the God of Mount Tai of Ruicheng County
Al Tarf
Altar of Land and Grai Altar of Land and GraltarAltar of Land and Grain
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